Pour the protein shake into the pint container and mix with pudding mix and butter extract.
Freeze the container on a flat surface for 24 hours or until frozen solid.
Run the container under hot water for 30 seconds, remove the lid, and place it in the outer bowl container.
Secure the outer bowl lid, place it into the Ninja Creami machine and press the Lite Ice Cream button to blend.
If the texture is powdery, use the Re-spin button for a smoother consistency.
Make a small hole in the ice cream, add frozen cookie dough pieces, and press the Mix-In button.
Serve with extra chunks of cookie dough on top and enjoy!